Question

In certain chemical reaction, $\Delta H=150kJ$ and $\Delta S=100J{K}^{-1}$ at $300K$. The value of $\Delta G$ would be:

• A. 0
• B. 300 kJ
• C. 330 kJ
• D. 120 kJ

Answer 1

The correct option is D 120 kJ

$\Delta G=\Delta H-T\Delta S$
$=150\times {10}^3-300\times 100$ J
$=(150-30)\times {10}^3$
$\Delta G=120KJ$

Option D is correct.